If the machine is not going to be upended onto its back and hand trucked, I wouldn't worry about getting inside it to remove the balls etc. until it was at my house. I would take the legs off and lower the backbox head. Data East so you need that allen key everyone is telling you about and a wrench for leg bolts. Then I would get it home and drill the lock etc. IMO if you and the other guy are not pin guys, I would not try to do all that stuff at his house. Best case scenario you take the balls out etc., but this is not the best case scenario.
Make sure it works and welcome to the club!